Javascript DOM CSS Style borderTopStyle Property set

Introduction

Change the style of the top border of a <div> element to "dotted": 

document.getElementById("myDiv").style.borderTopStyle = "dotted";

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<!DOCTYPE html>
<html>
<head>
<style>
#myDiv {//  www . j a  va2 s .com
  border: thick solid #FF0000;
}
</style>
</head>
<body>

<div id="myDiv">This is a div.</div>
<br>
<button type="button" onclick="myFunction()">Change style of the top border</button>

<script>
function myFunction() {
  document.getElementById("myDiv").style.borderTopStyle = "dotted";
}
</script>

</body>
</html>



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